- 中文核心期刊
- 中国科技核心期刊
- ISSN 1007-6336
- CN 21-1168/X
| Citation: |
CHI Xiaoyu, ZHU Jianbin, MI Tiezhu, ZHEN Yu, WANG Jianyan. Effects of seawater acidification on Skeletonema costatum[J]. Chinese Journal of MARINE ENVIRONMENTAL SCIENCE, 2023, 42(5): 758-765. DOI: 10.12111/j.mes.2022-x-0351
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To investigate the effects of seawater acidification, two major factors affecting seawater acidification were selected to investigate their influence on Skeletonema costatum. The growth rate, chlorophyll fluorescence parameters, particulate organic carbon (POC), particulate organic nitrogen (PON) contents and C/N ratio of the algae were measured under different conditions. The results showed that seawater acidification significantly inhibited the growth of S. costatum, with a growth rate of 0.86/d in the acidification group and 0.99/d in the control group, and that this inhibitory effect was mainly attributed to the effect of pCO2. The acidification of seawater had no significant effect on the photosynthetic efficiency of S. costatum. Seawater acidification significantly increased POC and PON by 37.1% and 43.3%, respectively, with POC being affected by both pH and pCO2, and PON being mainly affected by pCO2. It is shown that seawater acidification was benefit to the carbon and nitrogen accumulation of S. costatum; however, no significant variation was observed in the C/N ratio among algal cells under the different acidification treatments.
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| 1. |
WANG Shuxing，MI Tiezhu，ZHEN Yu，ZHU Jianbin. Effects of Ocean Acidification on Nitrogen Metabolism of Skeletonema costatum. Journal of Ocean University of China. 2024(05): 1359-1370 .
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